CN210965532U - Temperature-adjustable and controllable low-temperature high-speed centrifuge - Google Patents
Temperature-adjustable and controllable low-temperature high-speed centrifuge Download PDFInfo
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- CN210965532U CN210965532U CN201921778323.8U CN201921778323U CN210965532U CN 210965532 U CN210965532 U CN 210965532U CN 201921778323 U CN201921778323 U CN 201921778323U CN 210965532 U CN210965532 U CN 210965532U
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Abstract
The utility model discloses a temperature-adjustable and controllable low-temperature high-speed centrifuge, which comprises a casing and a reinforcing plate arranged on the inner side wall of the casing, wherein a fixing hole in the shape of a round platform is formed in the center of the reinforcing plate, and a hopper in the shape of an inverted round platform is arranged on the fixing hole; a cavity is arranged in the center of the bottom of the hopper, a driving motor with a driving shaft arranged towards the top of the shell is arranged in the cavity, and a cavity cover for supporting the driving motor is arranged at an opening at the bottom of the cavity; a hemispherical filter screen is arranged on the outer side of the centrifugal cylinder; the top of the inner side wall of the shell is provided with an annular sealing plate; the opening part of the centrifugal cylinder is provided with a cylinder cover, the center of the cylinder cover is provided with a cylinder plug, the cylinder plug is provided with two air passages, the cavity cover is provided with two air holes, a variable frequency air heater is arranged in the casing, an air inlet of the variable frequency air heater is clamped with one air hole on the cavity cover, an air outlet of the variable frequency air heater is clamped with a port of one air passage on the top end of the cylinder plug, and a backflow air pipe is clamped between a port of the other air passage on the top end of the cylinder plug and the other air hole on the cavity cover.
Description
Technical Field
The utility model relates to a centrifugal equipment field, especially a controllable low temperature high speed centrifuge of adjustable temperature.
Background
At present, most of traditional centrifuges used in medical inspection are expensive in structure and price and poor in centrifugation effect, so that small particle impurities are still mixed in separated liquid, and the inspection result is influenced; and the traditional centrifuge has inconvenient liquid drainage and high cleaning and maintenance difficulty.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists among the prior art, the utility model provides a controllable low temperature high speed centrifuge of adjustable temperature.
The utility model adopts the technical proposal that:
a temperature-adjustable and controllable low-temperature high-speed centrifuge comprises a casing with an opening at the top, a cover arranged at the opening at the top of the casing and a reinforcing plate horizontally arranged on the inner side wall of the casing, wherein a fixing hole in a circular truncated cone shape is formed in the center of the reinforcing plate, and a hopper in an inverted circular truncated cone shape is arranged on the fixing hole; a cavity is arranged in the center of the bottom of the hopper, a driving motor with a driving shaft arranged towards the top of the shell is arranged in the cavity, a cavity cover used for supporting the driving motor is arranged at an opening at the bottom of the cavity, the outer annular surface of the cavity cover is in threaded connection with the cavity, the driving shaft of the driving motor penetrates through the top wall of the cavity and then is connected with a hemispherical centrifugal cylinder, and a sleeve for isolating liquid is sleeved outside the driving shaft of the driving motor; the opening of the centrifugal cylinder faces the top of the machine shell, the lowest position of the outer side of the centrifugal cylinder is connected with a driving shaft of a driving motor through a cross key, a plurality of liquid leakage holes are uniformly formed in the surface of the centrifugal cylinder, and a hemispherical filter screen is arranged on the outer side of the centrifugal cylinder; the opening of the filter screen faces the top of the casing, the centrifugal cylinder is completely accommodated in the filter screen, and the driving shaft of the driving motor penetrates through the lowest part of the filter screen; the parts of the bottom of the hopper, which are positioned at the two sides of the cavity, are respectively provided with a discharge hole;
the top of the inner side wall of the casing is provided with an annular sealing plate, and a central hole of the annular sealing plate corresponds to the top opening of the centrifugal cylinder;
the opening of the centrifugal cylinder is provided with a cylinder cover, the outer side ring surface of the cylinder cover is in threaded connection with the inner side ring surface of the centrifugal cylinder, the center of the cylinder cover is provided with a hole, a cylinder plug is arranged at the hole, the part of the cylinder plug positioned in the centrifugal cylinder is larger than the part positioned outside the centrifugal cylinder, the outer side of the top of the cylinder plug is provided with a buckle, the annular sealing plate is provided with a clamping hole matched with the buckle, a bearing is arranged between the cylinder plug and the cylinder cover, the cylinder plug is internally provided with two air passages, one ends of the two air passages extend to the top of the cylinder plug, the other ends of the two air passages respectively extend to two opposite side walls of the cylinder plug and are communicated with the centrifugal cylinder, the cavity cover is provided with two air holes, a variable frequency hot air blower is arranged in the casing, the air inlet of the variable frequency hot air blower is clamped with one air hole in the cavity cover, and the air outlet of, and a backflow air pipe is clamped between the port of the other air passage positioned at the top end of the cylinder plug and the other air hole on the cavity cover, and a temperature sensor is arranged at the bottom of the cylinder plug.
When the centrifugal cylinder cover is used, the cover is opened, the backflow air pipe and the air outlet of the variable-frequency hot air blower are detached from the air passage, and then the buckle is taken out of the clamping hole so that the cylinder cover can be screwed out of the centrifugal cylinder; after pouring solid-liquid mixture to be centrifuged into the centrifugal cylinder, sequentially screwing the cylinder cover, connecting a backflow air pipe and an air outlet of the variable frequency air heater, and then covering the machine cover; starting a driving motor, driving a centrifugal cylinder to carry out centrifugal operation by the driving motor, enabling the centrifuged liquid to impact a filter screen, and blocking the unseparated small-particle solid between the centrifugal cylinder and the filter screen; the successfully separated liquid flows out through the discharge hole and can be collected by using a corresponding vessel.
The annular sealing plate can be used for sealing the space between the hopper and the filter screen and the space between the filter screen and the centrifugal cylinder on the one hand, and can also be connected with the hopper and the filter screen on the other hand to further fix the hopper and the filter screen.
In the centrifugal process, the variable frequency hot air blower can be started to heat the centrifugal cylinder. Of course, the centrifugation can be started after heating as needed. The frequency conversion air heater is by its air-blower extraction air in from the cavity, blows into the centrifuge bowl after the heater heating of frequency conversion air heater in, and the air in the centrifuge bowl is circulated by the backflow trachea backward flow again and is advanced the cavity, and the heat that not only can utilize the interior driving motor work of cavity to produce also cools off driving motor simultaneously, prolongs its life, and utilizes the heat in the cavity, also utilizes frequency conversion air heater's energy-conservation.
The signal output end of the temperature sensor can be connected with a control circuit of the variable frequency air heater, the frequency of the air heater is adjusted according to the actual temperature in the centrifugal cylinder, the temperature is adjusted, if the temperature is lower than the required temperature, the frequency of the air heater is increased, and if the temperature is higher than the required temperature, the frequency of the air heater is reduced.
The cooperation of buckle and card hole can prevent that the condition of slight follow-up rotation from appearing in the section of thick bamboo stopper when the centrifuging barrel is rotatory from taking place, avoids backward flow trachea and frequency conversion air heater gas outlet winding.
The cylinder cover and the cavity cover are fixedly connected through threads, better sealing performance can be kept, the cavity cover is connected through threads, the cavity cover is screwed after the driving motor is supported by the cavity cover, and the driving motor is more convenient to install compared with a mode of using a hinge to connect the cavity cover. When the driving motor is installed, the air inlet of the reflux air pipe and the variable frequency air heater needs to be detached from the air hole.
Preferably, the bottom of the hopper is connected with a Y-shaped material conveying pipe, two ports at the top of the material conveying pipe are respectively connected with two discharge ports at the bottom of the hopper, a port at the bottom of the material conveying pipe extends out of the casing from the bottom wall of the casing, and an electromagnetic valve is arranged at the port at the bottom of the material conveying pipe.
The liquid flowing out from the two discharge ports can be conveniently collected through the conveying pipe, and then is uniformly output through the bottom port, so that the liquid is convenient to collect.
Preferably, one side of the top wall of the chamber facing the bottom of the machine shell is provided with a first rubber buffer layer, and one side of the chamber cover facing the top of the machine shell is provided with a second rubber buffer layer after being closed.
The distance of roof and the diapire with the cavity of machine sets up to just holding driving motor, the fixed driving motor of can being convenient for, and first, second rubber buffer layer can avoid driving motor and cavity to bump, reduce the vibration.
Preferably, the outer annular surface of the cover is in threaded connection with the casing, and the outer annular surface of the annular sealing plate is in threaded connection with the casing.
The cover and the annular sealing plate are connected by threads, so that good sealing performance can be kept.
Preferably, the lateral wall bottom of casing is equipped with the access hole that is used for overhauing driving motor, the access hole articulates there is the access door.
When the driving motor breaks down, the access door can be opened to facilitate the maintenance of the driving motor.
The utility model has the advantages that: simple structure, with low costs, and centrifugal effectual, the liquid of final separation does not have tiny particle impurity, does not influence the testing result, and the flowing back is convenient, dismantles and washs easy maintenance, and the temperature is controllable adjustable, and when the low temperature used, the heat that only needs driving motor to produce can the temperature of maintaining.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
reference numerals: 10. casing, 11, cover, 12, gusset plate, 13, access door, 20, hopper, 21, cavity, 22, chamber lid, 23, driving motor, 24, sleeve, 25, discharge gate, 26, gas pocket, 30, centrifuge tube, 31, weeping hole, 32, cover, 33, bung, 34, buckle, 35, air flue, 40, filter screen, 50, annular closing plate, 51, card hole, 60, frequency conversion air heater, 70, return air pipe, 80, temperature sensor, 90, conveying pipeline, 91, solenoid valve.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Examples
As shown in fig. 1, a temperature-adjustable and controllable low-temperature high-speed centrifuge comprises a casing 10 with an open top, a cover 11 arranged at the open top of the casing 10, and a reinforcing plate 12 horizontally arranged on the inner side wall of the casing 10, wherein a fixing hole in the shape of a circular truncated cone is formed in the center of the reinforcing plate 12, and a hopper 20 in the shape of an inverted circular truncated cone is arranged on the fixing hole; a cavity 21 is arranged at the center of the bottom of the hopper 20, a driving motor 23 with a driving shaft arranged towards the top of the casing 10 is arranged in the cavity 21, a cavity cover 22 for supporting the driving motor 23 is arranged at an opening at the bottom of the cavity 21, the outer side ring surface of the cavity cover 22 is in threaded connection with the cavity 21, the driving shaft of the driving motor 23 penetrates through the top wall of the cavity 21 and then is connected with a hemispherical centrifugal cylinder 30, and a sleeve 24 for isolating liquid is sleeved outside the driving shaft of the driving motor 23; the opening of the centrifugal cylinder 30 faces the top of the casing 10, the lowest position of the outer side of the centrifugal cylinder 30 is connected with the driving shaft of the driving motor 23 through a cross key, the surface of the centrifugal cylinder 30 is uniformly provided with a plurality of leakage holes 31, and the outer side of the centrifugal cylinder 30 is provided with a hemispherical filter screen 40; the opening of the filter screen 40 faces the top of the casing 10, the centrifugal cylinder 30 is completely accommodated in the filter screen 40, and the driving shaft of the driving motor 23 passes through the lowest part of the filter screen 40; the parts of the bottom of the hopper 20 positioned at the two sides of the cavity 21 are respectively provided with a discharge hole 25;
an annular sealing plate 50 is arranged at the top of the inner side wall of the casing 10, and a central hole of the annular sealing plate 50 corresponds to the top opening of the centrifugal cylinder 30;
a cylinder cover 32 is arranged at an opening of the centrifugal cylinder 30, an outer side ring surface of the cylinder cover 32 is in threaded connection with an inner side ring surface of the centrifugal cylinder 30, a hole is formed in the center of the cylinder cover 32, a cylinder plug 33 is arranged at the hole, the part of the cylinder plug 33, which is positioned in the centrifugal cylinder 30, is larger than the part, which is positioned outside the centrifugal cylinder 30, a buckle 34 is arranged at the outer side of the top of the cylinder plug 33, a clamping hole 51 which is matched with the buckle 34 is arranged on the annular sealing plate 50, a bearing is arranged between the cylinder plug 33 and the cylinder cover 32, two air passages 35 are arranged in the cylinder plug 33, one ends of the two air passages 35 extend to the top of the cylinder plug 33, the other ends of the two air passages 35 respectively extend to two opposite side walls of the cylinder plug 33 to be communicated with the centrifugal cylinder 30, two air holes 26 are arranged on the cavity cover 22, a variable frequency hot air blower 60 is arranged in the casing 10, an air, the air outlet of the variable frequency hot air blower 60 is clamped with the port of one air passage 35 at the top end of the cylinder plug 33, the backflow air pipe is clamped between the port of the other air passage 35 at the top end of the cylinder plug 33 and the other air hole 26 on the cavity cover 22, and the bottom of the cylinder plug 33 is provided with the temperature sensor 80.
When the centrifugal cylinder cover is used, the cover is opened, the backflow air pipe and the air outlet of the variable-frequency hot air blower are detached from the air passage, and then the buckle is taken out of the clamping hole so that the cylinder cover can be screwed out of the centrifugal cylinder; after pouring solid-liquid mixture to be centrifuged into the centrifugal cylinder, sequentially screwing the cylinder cover, connecting a backflow air pipe and an air outlet of the variable frequency air heater, and then covering the machine cover; starting a driving motor, driving a centrifugal cylinder to carry out centrifugal operation by the driving motor, enabling the centrifuged liquid to impact a filter screen, and blocking the unseparated small-particle solid between the centrifugal cylinder and the filter screen; the successfully separated liquid flows out through the discharge hole and can be collected by using a corresponding vessel.
The annular sealing plate can be used for sealing the space between the hopper and the filter screen and the space between the filter screen and the centrifugal cylinder on the one hand, and can also be connected with the hopper and the filter screen on the other hand to further fix the hopper and the filter screen. The sealing method is a rotating seal commonly used in machinery.
In the centrifugal process, the variable frequency hot air blower can be started to heat the centrifugal cylinder. Of course, the centrifugation can be started after heating as needed. The frequency conversion air heater is by its air-blower extraction air in from the cavity, blows into the centrifuge bowl after the heater heating of frequency conversion air heater in, and the air in the centrifuge bowl is circulated by the backflow trachea backward flow again and is advanced the cavity, and the heat that not only can utilize the interior driving motor work of cavity to produce also cools off driving motor simultaneously, prolongs its life, and utilizes the heat in the cavity, also utilizes frequency conversion air heater's energy-conservation.
The signal output end of the temperature sensor can be connected with a control circuit of the variable frequency air heater, the frequency of the air heater is adjusted according to the actual temperature in the centrifugal cylinder, the temperature is adjusted, if the temperature is lower than the required temperature, the frequency of the air heater is increased, and if the temperature is higher than the required temperature, the frequency of the air heater is reduced.
The cooperation of buckle and card hole can prevent that the condition of slight follow-up rotation from appearing in the section of thick bamboo stopper when the centrifuging barrel is rotatory from taking place, avoids backward flow trachea and frequency conversion air heater gas outlet winding. Specifically, the clamping hole can be a groove formed in the edge of the annular side face of the annular sealing plate, the buckle can be in a strip shape, one end of the buckle is fixedly connected with the cylinder plug, and the other end of the buckle can be detachably clamped in the groove.
The cylinder cover and the cavity cover are fixedly connected through threads, better sealing performance can be kept, the cavity cover is connected through threads, the cavity cover is screwed after the driving motor is supported by the cavity cover, and the driving motor is more convenient to install compared with a mode of using a hinge to connect the cavity cover. When the driving motor is installed, the air inlet of the reflux air pipe and the variable frequency air heater needs to be detached from the air hole.
In one embodiment, a feed delivery pipe 90 in a "Y" shape is connected to the bottom of the hopper 20, two ports at the top of the feed delivery pipe 90 are respectively connected to two discharge ports 25 at the bottom of the hopper 20, a bottom port of the feed delivery pipe 90 extends from the bottom wall of the casing 10 to the outside of the casing 10, and a solenoid valve 91 is disposed at the bottom port of the feed delivery pipe 90.
The liquid flowing out from the two discharge ports can be conveniently collected through the conveying pipe, and then is uniformly output through the bottom port, so that the liquid is convenient to collect.
In one embodiment, a first rubber buffer layer is disposed on a side of the top wall of the chamber 21 facing the bottom of the casing 10, and a second rubber buffer layer is disposed on a side of the chamber cover 22 facing the top of the casing 10 after being closed.
The distance of roof and the diapire with the cavity of machine sets up to just holding driving motor, the fixed driving motor of can being convenient for, and first, second rubber buffer layer can avoid driving motor and cavity to bump, reduce the vibration.
In one embodiment, the outer annular surface of the canopy 11 is threadably engaged with the housing 10, and the outer annular surface of the annular sealing plate 50 is threadably engaged with the housing 10.
The cover and the annular sealing plate are connected by threads, so that good sealing performance can be kept.
In one embodiment, the bottom of the side wall of the casing 10 is provided with an access opening for accessing the driving motor 23, and the access opening is hinged with an access door 13.
When the driving motor breaks down, the access door can be opened to facilitate the maintenance of the driving motor.
The utility model discloses the connected mode that does not clarify is connected modes such as conventional welding, screw thread, screw connection.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (5)
1. A temperature-adjustable and controllable low-temperature high-speed centrifuge is characterized by comprising a casing with an opening at the top, a cover arranged at the opening at the top of the casing and a reinforcing plate horizontally arranged on the inner side wall of the casing, wherein a fixing hole in a circular truncated cone shape is formed in the center of the reinforcing plate, and a hopper in an inverted circular truncated cone shape is arranged on the fixing hole; a cavity is arranged in the center of the bottom of the hopper, a driving motor with a driving shaft arranged towards the top of the shell is arranged in the cavity, a cavity cover used for supporting the driving motor is arranged at an opening at the bottom of the cavity, the outer annular surface of the cavity cover is in threaded connection with the cavity, the driving shaft of the driving motor penetrates through the top wall of the cavity and then is connected with a hemispherical centrifugal cylinder, and a sleeve for isolating liquid is sleeved outside the driving shaft of the driving motor; the opening of the centrifugal cylinder faces the top of the machine shell, the lowest position of the outer side of the centrifugal cylinder is connected with a driving shaft of a driving motor through a cross key, a plurality of liquid leakage holes are uniformly formed in the surface of the centrifugal cylinder, and a hemispherical filter screen is arranged on the outer side of the centrifugal cylinder; the opening of the filter screen faces the top of the casing, the centrifugal cylinder is completely accommodated in the filter screen, and the driving shaft of the driving motor penetrates through the lowest part of the filter screen; the parts of the bottom of the hopper, which are positioned at the two sides of the cavity, are respectively provided with a discharge hole;
the top of the inner side wall of the casing is provided with an annular sealing plate, and a central hole of the annular sealing plate corresponds to the top opening of the centrifugal cylinder;
the opening of the centrifugal cylinder is provided with a cylinder cover, the outer side ring surface of the cylinder cover is in threaded connection with the inner side ring surface of the centrifugal cylinder, the center of the cylinder cover is provided with a hole, a cylinder plug is arranged at the hole, the part of the cylinder plug positioned in the centrifugal cylinder is larger than the part positioned outside the centrifugal cylinder, the outer side of the top of the cylinder plug is provided with a buckle, the annular sealing plate is provided with a clamping hole matched with the buckle, a bearing is arranged between the cylinder plug and the cylinder cover, the cylinder plug is internally provided with two air passages, one ends of the two air passages extend to the top of the cylinder plug, the other ends of the two air passages respectively extend to two opposite side walls of the cylinder plug and are communicated with the centrifugal cylinder, the cavity cover is provided with two air holes, a variable frequency hot air blower is arranged in the casing, the air inlet of the variable frequency hot air blower is clamped with one air hole in the cavity cover, and the air outlet of, and a backflow air pipe is clamped between the port of the other air passage positioned at the top end of the cylinder plug and the other air hole on the cavity cover, and a temperature sensor is arranged at the bottom of the cylinder plug.
2. The centrifuge of claim 1, wherein the hopper is connected to the bottom of the hopper by a Y-shaped feeding pipe, two top ports of the feeding pipe are respectively connected to two discharge ports at the bottom of the hopper, a bottom port of the feeding pipe extends from the bottom wall of the casing to the outside of the casing, and a solenoid valve is disposed at the bottom port of the feeding pipe.
3. The centrifuge of claim 1, wherein a first rubber buffer layer is disposed on the top wall of the chamber facing the bottom of the housing, and a second rubber buffer layer is disposed on the top wall of the chamber facing the top of the housing.
4. The centrifuge of claim 1, wherein the outer ring surface of the cover is screwed with the casing, and the outer ring surface of the sealing plate is screwed with the casing.
5. The centrifuge of claim 1, wherein the bottom of the side wall of the housing is provided with an access opening for accessing the driving motor, and the access opening is hinged with an access door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921778323.8U CN210965532U (en) | 2019-10-22 | 2019-10-22 | Temperature-adjustable and controllable low-temperature high-speed centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921778323.8U CN210965532U (en) | 2019-10-22 | 2019-10-22 | Temperature-adjustable and controllable low-temperature high-speed centrifuge |
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| Publication Number | Publication Date |
|---|---|
| CN210965532U true CN210965532U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921778323.8U Active CN210965532U (en) | 2019-10-22 | 2019-10-22 | Temperature-adjustable and controllable low-temperature high-speed centrifuge |
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| CN (1) | CN210965532U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113522138A (en) * | 2021-07-29 | 2021-10-22 | 江苏省华茂科教设备有限公司 | Liquid material fast centrifugal dispersion auxiliary device for teaching experiments |
-
2019
- 2019-10-22 CN CN201921778323.8U patent/CN210965532U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113522138A (en) * | 2021-07-29 | 2021-10-22 | 江苏省华茂科教设备有限公司 | Liquid material fast centrifugal dispersion auxiliary device for teaching experiments |
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Address after: 610000 No. 29, 31, 33 and 35, third floor, block B, building 1, No. 1480, north section of Tianfu Avenue, high tech Zone, Chengdu, Sichuan Patentee after: Chengdu Yingshi medical laboratory Co.,Ltd. Address before: 610000 No. 29, 31, 33 and 35, third floor, block B, building 1, No. 1480, north section of Tianfu Avenue, high tech Zone, Chengdu, Sichuan Patentee before: Chengdu Renji Medical Laboratory Co.,Ltd. |